Also the Launch Control series from Novation is quite interesting. I own an XL (which has 24 knobs, 8 faders and 16+8 buttons); while it is not programmable from Linux (yet), I started a project some months ago, which aims to use a program as a sort of "proxy": this means that you connect the Launch Control to my program, and then connect it to your software(s), instruments and so on, also allowing some advanced behavior over MIDI (multiple toggle states, trigger more than one button at a time...) and obviously led programming.
It might not seem very easy in the beginning, but once you've configured your templates, it's very useful, expecially in live.
If you are interested, I wrote a small post here (with some screenshots and explaination on how it works):
http://jidesk.net/post/nolae-a-novation-launchcontrol-editor

Cheers

2016-12-11 23:56 GMT+01:00 <till@www.n0ne.de>:
yeah, an omission / typo: the icon has _touch sensitive_ motorized faders, the behringer not. i find this to be quite if you are doing something in latch mode and dont want to wiggle the faders all the time to get keyframes recorded.

December 11 2016 11:52 PM, "Georg Krause" <mail@georg-krause.net> wrote:
> The behringer also has ;)
>
> Am So. Dez. 11 23:27:41 2016 GMT+0100 schrieb till@www.n0ne.de:
>
>> Anyone ever tried stuff from this Icon company?
>> http://iconproaudio.com/product/platform-m
>>
>> its only slightly more expensive than the behringer BUT has motor faders...
>>
>> December 11 2016 11:19 PM, "Will Godfrey" <willgodfrey@musically.me.uk> wrote:
>>> On Sun, 11 Dec 2016 22:29:53 +0100
>>> Georg Krause <mail@georg-krause.net> wrote:
>>>
>>>> +1 for the bfc2k.
>>>>
>>>>> but it's a Behringer...
>>>>
>>>> It is. But in this case its not a big point, because there are no audio
>>>> quality issues or something like that. the midi signal has the same
>>>> quality, no matter where you save money. more important is: its class
>>>> compliant usb, its fully programmable, pretty robust (i dont have a
>>>> case, just put it in a bag to move it) and you can open it and adjust
>>>> the fader resistance ;)
>>>>
>>>> the size may be a down side, but i can totally recommend it.
>>>
>>> This actually looks very attractive indeed. I found an old Sound On Sound
>>> review of it and apparently you can get a Java application for programming it.
>>> This is platform agnostic.
>>>
>>> I think I'd be taking rather a risk trying to order one before Christmas now,
>>> but I'll certainly be giving it serious consideration in January.
>>>
>>> Thanks for such a quick response guys.
>>>
>>> --
>>> Will J Godfrey
>>> http://www.musically.me.uk
>>> Say you have a poem and I have a tune.
>>> Exchange them and we can both have a poem, a tune, and a song.
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